Camshaft Position Signal Output Circuit Low
The P2615 code means the vehicle's onboard diagnostic system has detected: Camshaft Position Signal Output Circuit Low. This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- hard
- Estimated cost
- $100 - $800 (parts and labor)
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Common Symptoms
- Engine cranks but will not start
- Random misfires if engine does run
- Timing-related codes in other modules
- Check engine light on
Probable Causes (Ranked by Likelihood)
- Short to ground in cam signal output wiring Very High
- ECM cam output driver shorted High
- Receiving module pulling signal low Moderate
- Water intrusion in signal circuit connector Low
Frequently Asked Questions
Can a module connected to the cam signal cause P2615?
Yes. If another module on the circuit has an internal short, it can pull the signal low. Disconnecting modules one at a time can isolate the faulty one.
Is P2615 always an ECM problem?
Not always. While the output circuit originates at the ECM, wiring shorts and downstream module faults are more common than ECM internal failure.
How does the cam signal affect fuel injection?
The cam signal tells the ECM which cylinder is on its compression stroke, allowing sequential fuel injection. Without it, the ECM cannot fire injectors correctly.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
-
Check cam signal output circuit for short to ground
-
Disconnect receiving modules one at a time to isolate fault
-
Test ECM cam output voltage
-
Inspect connectors for moisture damage
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Commonly Affected Vehicles
- 2010-2020 Toyota RAV4
- 2012-2019 Honda Accord
- 2008-2018 Ford Escape
- 2011-2020 Chevrolet Malibu
Related Codes
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